*{
    margin: 0;
    padding: 0;
}

div .section{
    margin-top: 15px;
}

body{
    background-image: url("../images/个人背景.jpg");
    background-size: cover;
    background-repeat: no-repeat;
}

#box1{
    width: 80vw;
    margin: 30px auto;
    background-color: #fff;
}

.text-color-999{
    font-size: 12px;
    font-weight: normal;
    color: #999999;
}